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Intangible Assets and Goodwill - Estimated Amortization Expense (Detail) - USD ($)
$ in Thousands
Apr. 30, 2021
Jul. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]    
For the remainder of the fiscal year ending July 31, 2021 $ 30,178  
For the fiscal year ending July 31, 2022 125,339  
For the fiscal year ending July 31, 2023 106,759  
For the fiscal year ending July 31, 2024 96,863  
For the fiscal year ending July 31, 2025 88,655  
For the fiscal year ending July 31, 2026 and thereafter 528,467  
Estimated annual amortization expense, total $ 976,261 $ 914,724